Bi-directional locking mechanism



FIG. 1 is an isometric view of a bi-directional locking mechanism according to the invention showing our new design.

FIG. 2 is a front elevation view thereof,

FIG. 3 is a right side elevation view thereof,

FIG. 4 is a rear elevation view thereof,

FIG. 5 is a left side elevation view thereof,

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawing disclosure are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a bi-directional locking mechanism, substantially as shown and described. 